BGP Signaling for Multipath Traffic Engineering Junction States

Multi-Path Traffic Engineering (MPTE) combines Traffic Engineering with Multi-Path forwarding, offering a much desired TE solution for both traditional WAN and new AIML DC/DCI. MPTE tunnels are based on MPTE Directed Acyclic Graph (DAG) and can be signaled with extensions to RSVP-TE, PCEP, BGP. This document specifies the BGP protocol extensions and procedures for signaling MPTE DAGs.